Underframe for cars.



PATENTED SEPT. l0, 1907;

` J. s. ANDREWS.

UNDBRPRAMB FOR GARS.

APPLICATION FILED JUNE l5, 1907.

2 SHEETS-SHEET l.

C@v www PATBNTED SEPT. 1o, 1907;.

as. ANDREWS. UNDBRFRAME POR GARS.

APPLICATION FILED JUNE 15, 1907.

2 SHEETS-SHEET 2. I

.which the end of the section 8 abuts.

I AMES S. ANDREWS,

-PATEN FFCE.

or NEW YORK, N. Y.

UNDERFRAME FOR CARS.

invention as embodied in anunderirame of the general construction disclosed in my application Serial No. 377,721 filed .l une 7, 1907, to illustrate one embodiment of the invention, and referring thereto Figure 1 is a top plan view of the underframe. Fig. 2 is a bottom plan view. Fig. 3 is an'enlarged' longitudinal sectional view o'n the line 3 3 of Fig. 1. v Fig. 4 is an enlarged transversesectional view on the lines 4-4 oi Fig. l. Fig. 5 is an enlarged detail View showing one of the joints.

Referring to the drawingseach side sill consists of two end sections Tand a central section 8, all of these scctions'being preferably made of cast steel in channel Yorin, butv the central section 8 may be made-of a rolled channel b'earn. The ends ofthe central section'overlap the ends of theend sections 7 and these overlapping ends are fastened together securely and rigidly by riv' etsor bolts- The joint formed' atv tliese overlapping ends isillustrated in detail in Fig. '5 which shows the end of the section 7 offset to fit between the flanges 8 on the section 8. This can be reversed vand the end o' the section 8 offset to fit between the flanges 7 on the section 7 ifdesired. ln the construction shown in- Fig. 5 the section 7 is providediwith shoulders 7"/ against At each end ofthe frame is a draw-bar sill 9 and this draw-bar sill is provided with side projections 10 to abut against side projections l1 on the end sections 7 of the side sills to constitute the body bolster, and also with sideV projections .12- t9 abut against side projections 12.011 the end sections of thesidesills to constitute the end sill. The proj ections' lnd '11 are made in I-form and are reduced at their ends sb that each may overlap and fit in the channel onl one side of the other, the upf-y per ange on each of' projections being cut away for this purpose (Fig. 1). f'llhe projections l2 and 1.3 overlap and-are secured together in themanner shown in Figo. j vv The body bolster is provided with a center bearing 14 and side bearings lfand' thels'de projections 11. may- Specification of Letters Patent.

Application iled J' une 15,

Patentes sept.. 1o, 19o?. 1907. serial No. 879,115.

the side bearings 15 (Fig. 4).

to constitute parts of the center sill and an intermediate cast steel section 18 in I-forrn overlaps at its ends the ends oi the projections 17 and is riveted or bolted there# to, as shown in Fig. 3. channel forni and made oi cast or rolled steel, are riveted or bolted to lugs 20 on the side and center sills.

My invention provides a sectional underiranae of .strong and substantial construction in which the sections are adapted to be securely and rigidly fastened together in ay simple manner. The construction is such that the Whole frame will be rigid and the parts thereof will not have any objectionable relative movement.

The manner of joining the sections may be embodied in frames of other constructions than that illustrated in the drawings and I do not lim it myself to this particular embodiment. l Jhat l claim and desire to secure by Letters Patent is:

1. In an underframe for cars, a metal' side sill compris ing a plurality of sections of channel form, said sections having their adjacent ends overlapped and secured together, one of said ends being. offset to .lit rwithinthe other.

2. In an underframe 'for-cars, a metal side sill comprising a' plurality of sections of channel form having their adjacentends overlapped and fastened together, the end of one section being offset to nt within the channel of the of the .other section abuts.

3. I-n en under-frame for' cars, a side sill comprising a cast steel' endsection having an integralv side projection to constitute part of the body bolster, a cast steel draw-bar sill-having 'nn integral side projection to constitute part ol? the body bolster, said projections overlapping each other at their adjacentends, and means for fastening said projections together. l v

4. In an underframe` for cars, a 'sidesill comprising a cast steel end sectionhavug nn integral "side projection with their ends overlapping, the end of each projection being reduced to lit within the channel on one side of the other projection, und the flanges on said projections being cut away to permit them to overlap, and means for fastenA ing said projections together. j

, 5. In ar'underframe for cnrs, s. side sill comprising a. cast 'steel end section having an integral side projection formingrph'rt of the body bolster',l a cast steel diawdmr sill having' an integral side' projection forming part of the body bolster, said projections overlapping and one provided with a side 'bearing and the other with a depending flange to lie against said side bearing, and means for fastening said projections together` have downwardlyextending flanges 16 to abut against,

Transoms. 19, preferably of other section and having a shoulder against which the end' forming part of the' body bolster-Qa cast steel dlmw-.hip sill having au integral side projection forming part ofthe body bolster, said projections being made in channel form 6. In an undertrame for wears, a side e111 comprising a` yThe draw-bar sills have end projections 17 in I-form enst sieel end seci'ion navi-ng an integral side projection forming' part of the end sill, a east steel draw-bar sill having :in iutcgml side projection forming part of the end s ill` Suid projections overlapping at their adjacent endfyand means for fastening said projections together. A

foi-minsT part of the body bolster and an iniegral side projection forming pali-t of the endsill, a cast steel draw-bar 10 sill having un integral side projection forming part of the i. In :m undrframe for curs, a side'sihcomprisng a' cist steel end section having an integral side projectionbody bolster and an integal side projection forming part the end sill projection on the side sill, and means for fas- 15 tening the overlnppingends ,of said projections together. l y JAMES S.ANDREWS. Witnesses 

